Sports Research® Vegan Vitamin D3 + K2 w/Coconut Oil, 60 Count Plantgels™ | Plant-Based Vitamin D 5000iu/125mcg & Soy-Free Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO

Sports Research® Vegan Vitamin D3 + K2 w/Coconut Oil, 60 Count Plantgels™ | Plant-Based Vitamin D 5000iu/125mcg & Soy-Free Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO

ASIN: B07255MPRN
Analysis Date: Jul 31, 2026

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Review Analysis Results

B
Authenticity Grade
10.00%
Fake Reviews
4.89
Original Rating
4.60
Adjusted Rating

Analysis Summary

The vast majority of these reviews appear genuine, with clear signals of authenticity such as personal context, specific product details, and balanced observations. Nearly all reviews are from verified purchasers, which significantly increases their credibility. The reviews describe real user experiences, including dietary preferences (vegan), usage alongside other supplements, and practical observations about the product's size, taste, and packaging. There is no evidence of repetitive marketing language, generic praise without specifics, or coordinated patterns that would suggest manipulation.

Evidence of authenticity is strong across the board. For example, one reviewer mentions following a plant-based diet and specifically seeking a D3 source not derived from lanolin, which is a highly specific and personal detail. Another reviewer describes their supplement stack (creatine, fish oil, multivitamin, magnesium glycinate) and a recent addition of turmeric due to joint pain, providing a realistic health journey. A third reviewer notes the container is 'small and visually unintuitive,' which is a balanced, non-promotional observation that adds credibility. These details are typical of genuine customer feedback.

While there are no clear manipulation patterns, a few reviews are more generic and could be seen as less detailed, such as one that simply states the product is 'easy to digest' and helped maintain vitamin D levels. However, this brevity is not inherently suspicious; many genuine customers leave short, positive reviews. The overall tone is consistent with a high-quality product that meets expectations, and the lack of exaggerated claims or repetitive phrasing further supports authenticity.

In summary, the reviews reflect a genuine product experience with high satisfaction. The low fake percentage is justified by the strong presence of personal context, specific details, and verified purchases. There are no significant concerns, and the product appears to be well-regarded for its vegan formulation, ease of use, and combination of D3 and K2.

Key patterns identified in the review analysis include: Personal context (diet, supplement stack, health goals), Specific product attributes (vegan, non-GMO, coconut MCT oil, small softgels), Balanced observations (packaging, taste, ease of swallowing).

Review Statistics

54,186
Total Reviews on Amazon
-0.29
Rating Difference
Editor's Analysis

Choosing Vegan D3+K2: Why Formulation and Absorption Matter Most

When evaluating vegan vitamin D3 supplements like Sports Research's formula, the critical factors extend beyond dosage to include the specific K2 form (MK-7) and absorption technology. This product combines 5000IU D3 from lichen with 100mcg of MK-7 K2 in a coconut oil base, creating a specific formulation profile that requires careful assessment against your needs.

Key Considerations Before Buying

  • The MK-7 form of vitamin K2 has longer half-life than MK-4, providing sustained calcium regulation benefits, but requires checking for potential medication interactions.
  • Vegan D3 sourced from lichen (as used here) differs from lanolin-derived D3 in bioavailability; verify your body responds well to this plant-based source.
  • The coconut oil delivery system enhances fat-soluble vitamin absorption but may affect those with coconut sensitivities despite being soy-free and non-GMO.

What Our Analysts Recommend

Quality indicators for vegan D3+K2 supplements include third-party vegan certification (present here), clear sourcing disclosure (lichen for D3), and the specific MK-7 form of K2. The coconut oil medium should be cold-pressed and organic for optimal nutrient preservation, which this product's description implies but doesn't explicitly confirm.

Vitamin D Market Context

Market Overview

The vegan vitamin D3 market has expanded significantly, moving beyond traditional D2 options to include lichen-derived D3 paired with K2 for synergistic bone and cardiovascular support. Products combining these nutrients represent a premium segment focused on comprehensive metabolic health rather than isolated supplementation.

Common Issues

Many combined D3+K2 products use inferior K2 forms (MK-4) with shorter activity windows or employ synthetic fillers that contradict vegan principles. Some vegan D3 sources lack consistent potency testing, while improper D3:K2 ratios can diminish the intended synergistic effects.

Quality Indicators

Superior products specify lichen as the D3 source, use MK-7 K2 from natto, employ clean extraction methods, and provide third-party verification of both vegan status and potency. The presence of a healthy fat carrier like coconut oil is essential for bioavailability of these fat-soluble vitamins.

Review Authenticity Insights

Grade B Interpretation

The Grade B authenticity rating with 11% estimated fake reviews suggests generally reliable feedback with moderate review manipulation. For this specific supplement, this means approximately 1 in 9 reviews may be inauthentic, but the 4.60 adjusted rating from verified purchases remains strong.

Trust Recommendation

Focus on the 4.60 adjusted rating from verified purchases rather than the surface 4.89 average, and prioritize reviews discussing specific outcomes like bone density improvements, immune response changes, or digestion with the coconut oil base. The high verified purchase percentage increases confidence in the remaining authentic reviews.

Tips for Reading Reviews

Look for reviews mentioning the vegan certification importance, comparisons to previous lanolin-based D3 supplements, or specific feedback about the MK-7 form's effects. Be skeptical of overly generic immune support claims without personal context, as these may represent the estimated 11% inauthentic content.

Expert Perspective

Sports Research's formulation addresses key vegan supplementation challenges by combining lichen-derived D3 with the clinically relevant MK-7 form of K2 in an absorption-enhancing coconut oil base. The 4.60 adjusted rating from over 50,000 reviews indicates consistently positive user experiences, particularly regarding the vegan certification and soy-free formulation. The product's specific 5000IU:100mcg ratio aligns with research on synergistic D3+K2 dosing for bone metabolism support.

Purchase Considerations

Consider this product if you specifically require vegan-certified D3, want the longer-acting MK-7 form of K2, and prefer a coconut oil delivery system over other carriers. Weigh the 60-softgel quantity against your supplementation schedule, and verify the D3 dosage aligns with your healthcare provider's recommendation, as 5000IU represents a maintenance rather than loading dose.

Comparing Alternatives

Compare this product's lichen sourcing and MK-7 form against other vegan D3+K2 options, particularly examining price per serving and additional certifications like NSF or USP verification.

Price Analysis

This is a well-regarded premium supplement with excellent ratings. Given the 4.89/5 score from over 50,000 reviews, it's likely worth paying a premium over budget alternatives. Check current Amazon price against other retailers and consider Subscribe & Save if you plan to use it regularly.

MSRP Assessment

Estimated MSRP: $35-$45
Source: Brand typical pricing
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range to Premium
Alternatives Range: $15-$60
Value: This product offers strong value with its vegan certification, high ratings, and combined D3+K2 formulation, though you'll pay more than basic vitamin D supplements.

Buying Tips

Best Time to Buy: Best prices often occur during winter months (October-February) when demand for immune support vitamins peaks.
Deal Indicators: Look for Subscribe & Save discounts, coupon checkboxes, or multi-bottle bundles for best value.
Watch For: Watch for third-party sellers charging significantly above typical Amazon price; verify seller is 'Sports Research' or Amazon directly.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Mar 25, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (4.60 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.89 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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